- BBb-Tuba
- 5/4 size
- 4 rotary valves
- bore: 21,5mm / .846˝
- bell Ø: 46cm / 18.1˝
- height: 114cm / 44.9˝
- yellow brass
- clear-lacquered
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198 (same model as 197 except with 5th valve [right hand thumb operated] in 4th valve slide)
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